C#界面设计之树目录TreeView的使用

还是先上效果图：

主要代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace TreeDemo
{public partial class frmTree : Form{public frmTree(){InitializeComponent();}private List<string> GetAllNodeInfo(TreeView tvDept){List<string> lst = new List<string>();for (int i = 0; i < tvDept.Nodes.Count; i++){string od = string.Empty;od = string.Format("Level：{0}，Nodes：{1}，Name：{2}，Text：{3}\r\n",tvDept.Nodes[i].Level.ToString().PadLeft(3), tvDept.Nodes[i].Nodes.Count.ToString().PadLeft(3),tvDept.Nodes[i].Name, tvDept.Nodes[i].Text);lst.Add(od);if (tvDept.Nodes[i].Nodes.Count > 0){GetAllNodeInfoSub(tvDept.Nodes[i], lst);}}return lst;}private void GetAllNodeInfoSub(TreeNode nodeRoot, List<string> lst){for (int i = 0; i < nodeRoot.Nodes.Count; i++){string od = string.Empty;od = string.Format("Level：{0}，Nodes：{1}，Name：{2}，Text：{3}\r\n",nodeRoot.Nodes[i].Level.ToString().PadLeft(3), nodeRoot.Nodes[i].Nodes.Count.ToString().PadLeft(3),nodeRoot.Nodes[i].Name, nodeRoot.Nodes[i].Text);lst.Add(od);if (nodeRoot.Nodes[i].Nodes.Count > 0){GetAllNodeInfoSub(nodeRoot.Nodes[i], lst);}}}private void frmTree_Load(object sender, EventArgs e){treeView1.ExpandAll();treeView1.HideSelection = false;treeView1.CheckBoxes = checkBox1.Checked;treeView1.ShowLines = checkBox2.Checked;treeView1.ShowRootLines = checkBox3.Checked;}private void treeView1_AfterSelect(object sender, TreeViewEventArgs e){if (e.Node != null){//节点信息string strNodeInfo = string.Empty;strNodeInfo += string.Format("Name：{0}\r\n", e.Node.Name);strNodeInfo += string.Format("Text：{0}\r\n", e.Node.Text);strNodeInfo += string.Format("Nodes：{0}\r\n", e.Node.Nodes.Count.ToString());strNodeInfo += string.Format("Level：{0}\r\n", e.Node.Level);txtNodeInfo.Text = strNodeInfo;//显示窗体switch (e.Node.Text){case "ndForm1":(new Form1()).ShowDialog();break;case "ndForm2":(new Form2()).ShowDialog();break;case "ndForm3":(new Form3()).ShowDialog();break;}}}private void button1_Click(object sender, EventArgs e){TreeNode tn = new TreeNode();tn.Name = tn.Text = "tn" + DateTime.Now.ToString("yyMMddhhmmss") + DateTime.Now.Millisecond.ToString("D3");treeView1.Nodes.Add(tn);System.Threading.Thread.Sleep(1);}private void button2_Click(object sender, EventArgs e){if (treeView1.SelectedNode == null){return;}else{if (treeView1.SelectedNode.Parent == null){button1_Click(null, null);}else{TreeNode tn = new TreeNode();tn.Name = tn.Text = "tn" + DateTime.Now.ToString("yyMMddhhmmss") + DateTime.Now.Millisecond.ToString("D3");treeView1.SelectedNode.Parent.Nodes.Add(tn);System.Threading.Thread.Sleep(1);}}}private void button3_Click(object sender, EventArgs e){if (treeView1.SelectedNode == null){return;}else{TreeNode tn = new TreeNode();tn.Name = tn.Text = "tn" + DateTime.Now.ToString("yyMMddhhmmss") + DateTime.Now.Millisecond.ToString("D3");treeView1.SelectedNode.Nodes.Add(tn);System.Threading.Thread.Sleep(1);treeView1.ExpandAll();}}private void button4_Click(object sender, EventArgs e){if (treeView1.SelectedNode != null){treeView1.Nodes.Remove(treeView1.SelectedNode);}}private void button5_Click(object sender, EventArgs e){if (treeView1.SelectedNode != null){treeView1.SelectedNode.Nodes.Clear();}}private void button7_Click(object sender, EventArgs e){treeView1.ExpandAll();}private void button8_Click(object sender, EventArgs e){treeView1.CollapseAll();}private void checkBox1_CheckedChanged(object sender, EventArgs e){treeView1.CheckBoxes = checkBox1.Checked;treeView1.ExpandAll();}private void checkBox2_CheckedChanged(object sender, EventArgs e){treeView1.ShowLines = checkBox2.Checked;treeView1.ExpandAll();}private void checkBox3_CheckedChanged(object sender, EventArgs e){treeView1.ShowRootLines = checkBox3.Checked;treeView1.ExpandAll();}private void button6_Click(object sender, EventArgs e){List<string> lst = GetAllNodeInfo(treeView1);txtNodeInfo.Text = string.Empty;for (int i = 0; i < lst.Count; i++){txtNodeInfo.Text += lst[i];Application.DoEvents();}}}
}

namespace TreeDemo
{partial class frmTree{/// 

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